Exactly. There's no way a donor can force a university to use a donation as intended - not even a private university, and certainly not a state one. It's like putting extra money in with your tax return "to pay down the national debt." Get real.
One way around the leftists at a college is to negotiate with the school to establish (read: fund) an “endowed chair” (in Free Market Economics, for example).
Name it after yourself and your spouse, ‘The Joan and James Shmoe Chair in Political Economy,’ insist the person funded be a Constitutionalist or classical liberal scholar.